A LABORATORY AND FIELD INVESTIGATION OF RUBBERIZED ASPHALTIC CONCRETE MIXTURES (PELHAM ROAD). FINAL REPORT

With the passage of the Intermodal Surface Transportation Efficiency Act of 1991 (ISTEA), all of the state highway departments in the United States are required, beginning in 1994, to use crumb rubber modifiers (CRM) in asphalt pavements. In 1992, the South Carolina Department of Highways and Public Transportation (SCDHPT) initiated a research project as a first step in developing a strategy to comply with this new law. In this project, the dry process (PlusRide trademark) was used to pave approximately one mile of a road section (four lanes with a median). The project scope included the laboratory mix design, development of specifications, monitoring of the actual work performance, testing of in-place pavement cores, and assessment of the results. Some problems with the mixing and placement of the material affected the quality of the pavement. Subsequent testing of the in-place cores indicated that the aggregate gradation was generally on the low side of the band, and the asphalt cement content was difficult to determine using conventional extraction techniques. An improvement in the tensile strength ratio (TSR) was noted with time. In general, the friction values were unsatisfactory and did not meet the expectations reported by other agencies. Several follow-up projects are recommended to complete a thorough evaluation of the product.

  • Record URL:
  • Corporate Authors:

    Clemson University

    Department of Civil Engineering
    Clemson, SC  United States  29634

    South Carolina Department of Highways and Public Transportation

    955 Park Street, P.O. Box 191
    Columbia, SC  United States  29202

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Amirkhanian, S N
    • Arnold, L C
  • Publication Date: 1993-4

Language

  • English

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 95 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00629151
  • Record Type: Publication
  • Report/Paper Numbers: FHWA-SC-93-02
  • Files: TRIS, USDOT, STATEDOT
  • Created Date: May 26 1993 12:00AM